Mercurial > hg
annotate hgext/extdiff.py @ 49541:976648e20856
tests: remove non-python3 line matching and tests block
We don't support Python2 anymore
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 22 Sep 2022 16:27:17 +0200 |
parents | 642e31cb55f0 |
children | 493034cc3265 |
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1 # extdiff.py - external diff program support for mercurial |
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2 # |
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3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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7 |
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8 '''command to allow external programs to compare revisions |
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9 |
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10 The extdiff Mercurial extension allows you to use external programs |
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11 to compare revisions, or revision with working directory. The external |
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12 diff programs are called with a configurable set of options and two |
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13 non-option arguments: paths to directories containing snapshots of |
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14 files to compare. |
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15 |
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16 If there is more than one file being compared and the "child" revision |
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17 is the working directory, any modifications made in the external diff |
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18 program will be copied back to the working directory from the temporary |
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19 directory. |
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20 |
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21 The extdiff extension also allows you to configure new diff commands, so |
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22 you do not need to type :hg:`extdiff -p kdiff3` always. :: |
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23 |
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24 [extdiff] |
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25 # add new command that runs GNU diff(1) in 'context diff' mode |
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26 cdiff = gdiff -Nprc5 |
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27 ## or the old way: |
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28 #cmd.cdiff = gdiff |
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29 #opts.cdiff = -Nprc5 |
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30 |
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31 # add new command called meld, runs meld (no need to name twice). If |
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32 # the meld executable is not available, the meld tool in [merge-tools] |
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33 # will be used, if available |
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34 meld = |
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35 |
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36 # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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37 # (see http://www.vim.org/scripts/script.php?script_id=102) Non |
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38 # English user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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39 # your .vimrc |
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40 vimdiff = gvim -f "+next" \\ |
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41 "+execute 'DirDiff' fnameescape(argv(0)) fnameescape(argv(1))" |
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42 |
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43 Tool arguments can include variables that are expanded at runtime:: |
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44 |
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45 $parent1, $plabel1 - filename, descriptive label of first parent |
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46 $child, $clabel - filename, descriptive label of child revision |
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47 $parent2, $plabel2 - filename, descriptive label of second parent |
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48 $root - repository root |
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49 $parent is an alias for $parent1. |
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50 |
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51 The extdiff extension will look in your [diff-tools] and [merge-tools] |
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52 sections for diff tool arguments, when none are specified in [extdiff]. |
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53 |
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54 :: |
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55 |
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56 [extdiff] |
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57 kdiff3 = |
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58 |
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59 [diff-tools] |
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60 kdiff3.diffargs=--L1 '$plabel1' --L2 '$clabel' $parent $child |
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61 |
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62 If a program has a graphical interface, it might be interesting to tell |
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63 Mercurial about it. It will prevent the program from being mistakenly |
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64 used in a terminal-only environment (such as an SSH terminal session), |
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65 and will make :hg:`extdiff --per-file` open multiple file diffs at once |
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66 instead of one by one (if you still want to open file diffs one by one, |
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67 you can use the --confirm option). |
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68 |
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69 Declaring that a tool has a graphical interface can be done with the |
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70 ``gui`` flag next to where ``diffargs`` are specified: |
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71 |
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72 :: |
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73 |
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74 [diff-tools] |
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75 kdiff3.diffargs=--L1 '$plabel1' --L2 '$clabel' $parent $child |
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76 kdiff3.gui = true |
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77 |
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78 You can use -I/-X and list of file or directory names like normal |
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79 :hg:`diff` command. The extdiff extension makes snapshots of only |
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80 needed files, so running the external diff program will actually be |
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81 pretty fast (at least faster than having to compare the entire tree). |
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82 ''' |
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83 |
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84 |
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85 import os |
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86 import re |
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87 import shutil |
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88 import stat |
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89 import subprocess |
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90 |
3891 | 91 from mercurial.i18n import _ |
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92 from mercurial.node import ( |
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93 nullrev, |
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94 short, |
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95 ) |
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96 from mercurial import ( |
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97 archival, |
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98 cmdutil, |
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99 encoding, |
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100 error, |
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101 filemerge, |
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102 formatter, |
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103 logcmdutil, |
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104 pycompat, |
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105 registrar, |
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106 scmutil, |
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107 util, |
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108 ) |
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109 from mercurial.utils import ( |
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110 procutil, |
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111 stringutil, |
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112 ) |
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113 |
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114 cmdtable = {} |
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115 command = registrar.command(cmdtable) |
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116 |
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117 configtable = {} |
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118 configitem = registrar.configitem(configtable) |
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119 |
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120 configitem( |
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121 b'extdiff', |
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122 br'opts\..*', |
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123 default=b'', |
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124 generic=True, |
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125 ) |
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126 |
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127 configitem( |
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128 b'extdiff', |
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129 br'gui\..*', |
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130 generic=True, |
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131 ) |
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132 |
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133 configitem( |
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134 b'diff-tools', |
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135 br'.*\.diffargs$', |
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136 default=None, |
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137 generic=True, |
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138 ) |
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139 |
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140 configitem( |
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141 b'diff-tools', |
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142 br'.*\.gui$', |
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143 generic=True, |
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144 ) |
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145 |
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146 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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147 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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148 # be specifying the version(s) of Mercurial they are tested with, or |
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149 # leave the attribute unspecified. |
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150 testedwith = b'ships-with-hg-core' |
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151 |
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152 |
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153 def snapshot(ui, repo, files, node, tmproot, listsubrepos): |
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154 """snapshot files as of some revision |
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155 if not using snapshot, -I/-X does not work and recursive diff |
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156 in tools like kdiff3 and meld displays too many files.""" |
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157 dirname = os.path.basename(repo.root) |
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158 if dirname == b"": |
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159 dirname = b"root" |
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160 if node is not None: |
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161 dirname = b'%s.%s' % (dirname, short(node)) |
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162 base = os.path.join(tmproot, dirname) |
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163 os.mkdir(base) |
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164 fnsandstat = [] |
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165 |
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166 if node is not None: |
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167 ui.note( |
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168 _(b'making snapshot of %d files from rev %s\n') |
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169 % (len(files), short(node)) |
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170 ) |
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171 else: |
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172 ui.note( |
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173 _(b'making snapshot of %d files from working directory\n') |
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174 % (len(files)) |
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175 ) |
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176 |
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177 if files: |
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178 repo.ui.setconfig(b"ui", b"archivemeta", False) |
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179 |
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180 archival.archive( |
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181 repo, |
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182 base, |
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183 node, |
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184 b'files', |
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185 match=scmutil.matchfiles(repo, files), |
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186 subrepos=listsubrepos, |
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187 ) |
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188 |
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189 for fn in sorted(files): |
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190 wfn = util.pconvert(fn) |
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191 ui.note(b' %s\n' % wfn) |
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192 |
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193 if node is None: |
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194 dest = os.path.join(base, wfn) |
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195 |
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196 fnsandstat.append((dest, repo.wjoin(fn), os.lstat(dest))) |
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197 return dirname, fnsandstat |
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198 |
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199 |
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200 def formatcmdline( |
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201 cmdline, |
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202 repo_root, |
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203 do3way, |
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204 parent1, |
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205 plabel1, |
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206 parent2, |
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207 plabel2, |
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208 child, |
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209 clabel, |
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210 ): |
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211 # Function to quote file/dir names in the argument string. |
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212 # When not operating in 3-way mode, an empty string is |
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213 # returned for parent2 |
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214 replace = { |
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215 b'parent': parent1, |
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216 b'parent1': parent1, |
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217 b'parent2': parent2, |
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218 b'plabel1': plabel1, |
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219 b'plabel2': plabel2, |
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220 b'child': child, |
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221 b'clabel': clabel, |
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222 b'root': repo_root, |
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223 } |
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224 |
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225 def quote(match): |
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226 pre = match.group(2) |
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227 key = match.group(3) |
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228 if not do3way and key == b'parent2': |
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229 return pre |
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230 return pre + procutil.shellquote(replace[key]) |
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231 |
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232 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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233 regex = ( |
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234 br'''(['"]?)([^\s'"$]*)''' |
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235 br'\$(parent2|parent1?|child|plabel1|plabel2|clabel|root)\1' |
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236 ) |
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237 if not do3way and not re.search(regex, cmdline): |
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238 cmdline += b' $parent1 $child' |
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239 return re.sub(regex, quote, cmdline) |
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240 |
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241 |
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242 def _systembackground(cmd, environ=None, cwd=None): |
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243 """like 'procutil.system', but returns the Popen object directly |
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244 so we don't have to wait on it. |
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245 """ |
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246 env = procutil.shellenviron(environ) |
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247 proc = subprocess.Popen( |
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248 procutil.tonativestr(cmd), |
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249 shell=True, |
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250 close_fds=procutil.closefds, |
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251 env=procutil.tonativeenv(env), |
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252 cwd=pycompat.rapply(procutil.tonativestr, cwd), |
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253 ) |
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254 return proc |
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255 |
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256 |
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257 def _runperfilediff( |
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258 cmdline, |
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259 repo_root, |
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260 ui, |
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261 guitool, |
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262 do3way, |
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263 confirm, |
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264 commonfiles, |
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265 tmproot, |
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266 dir1a, |
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267 dir1b, |
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268 dir2, |
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269 rev1a, |
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270 rev1b, |
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271 rev2, |
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272 ): |
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273 # Note that we need to sort the list of files because it was |
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274 # built in an "unstable" way and it's annoying to get files in a |
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275 # random order, especially when "confirm" mode is enabled. |
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276 waitprocs = [] |
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277 totalfiles = len(commonfiles) |
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278 for idx, commonfile in enumerate(sorted(commonfiles)): |
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279 path1a = os.path.join(dir1a, commonfile) |
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280 label1a = commonfile + rev1a |
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281 if not os.path.isfile(path1a): |
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282 path1a = pycompat.osdevnull |
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283 |
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284 path1b = b'' |
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285 label1b = b'' |
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286 if do3way: |
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287 path1b = os.path.join(dir1b, commonfile) |
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288 label1b = commonfile + rev1b |
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289 if not os.path.isfile(path1b): |
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290 path1b = pycompat.osdevnull |
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291 |
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292 path2 = os.path.join(dir2, commonfile) |
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293 label2 = commonfile + rev2 |
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294 |
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295 if confirm: |
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296 # Prompt before showing this diff |
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297 difffiles = _(b'diff %s (%d of %d)') % ( |
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298 commonfile, |
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299 idx + 1, |
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300 totalfiles, |
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301 ) |
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302 responses = _( |
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303 b'[Yns?]' |
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304 b'$$ &Yes, show diff' |
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305 b'$$ &No, skip this diff' |
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306 b'$$ &Skip remaining diffs' |
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307 b'$$ &? (display help)' |
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308 ) |
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309 r = ui.promptchoice(b'%s %s' % (difffiles, responses)) |
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310 if r == 3: # ? |
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311 while r == 3: |
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312 for c, t in ui.extractchoices(responses)[1]: |
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313 ui.write(b'%s - %s\n' % (c, encoding.lower(t))) |
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314 r = ui.promptchoice(b'%s %s' % (difffiles, responses)) |
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315 if r == 0: # yes |
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316 pass |
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317 elif r == 1: # no |
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318 continue |
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319 elif r == 2: # skip |
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320 break |
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321 |
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322 curcmdline = formatcmdline( |
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323 cmdline, |
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324 repo_root, |
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325 do3way=do3way, |
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326 parent1=path1a, |
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327 plabel1=label1a, |
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328 parent2=path1b, |
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329 plabel2=label1b, |
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330 child=path2, |
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331 clabel=label2, |
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332 ) |
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333 |
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334 if confirm or not guitool: |
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335 # Run the comparison program and wait for it to exit |
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336 # before we show the next file. |
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337 # This is because either we need to wait for confirmation |
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338 # from the user between each invocation, or because, as far |
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339 # as we know, the tool doesn't have a GUI, in which case |
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340 # we can't run multiple CLI programs at the same time. |
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341 ui.debug( |
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342 b'running %r in %s\n' % (pycompat.bytestr(curcmdline), tmproot) |
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343 ) |
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344 ui.system(curcmdline, cwd=tmproot, blockedtag=b'extdiff') |
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345 else: |
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346 # Run the comparison program but don't wait, as we're |
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347 # going to rapid-fire each file diff and then wait on |
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348 # the whole group. |
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349 ui.debug( |
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350 b'running %r in %s (backgrounded)\n' |
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351 % (pycompat.bytestr(curcmdline), tmproot) |
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352 ) |
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353 proc = _systembackground(curcmdline, cwd=tmproot) |
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354 waitprocs.append(proc) |
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355 |
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356 if waitprocs: |
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357 with ui.timeblockedsection(b'extdiff'): |
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358 for proc in waitprocs: |
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359 proc.wait() |
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360 |
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361 |
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362 def diffpatch(ui, repo, node1, node2, tmproot, matcher, cmdline): |
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363 template = b'hg-%h.patch' |
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364 # write patches to temporary files |
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365 with formatter.nullformatter(ui, b'extdiff', {}) as fm: |
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366 cmdutil.export( |
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367 repo, |
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368 [repo[node1].rev(), repo[node2].rev()], |
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369 fm, |
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370 fntemplate=repo.vfs.reljoin(tmproot, template), |
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371 match=matcher, |
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372 ) |
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373 label1 = cmdutil.makefilename(repo[node1], template) |
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374 label2 = cmdutil.makefilename(repo[node2], template) |
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375 file1 = repo.vfs.reljoin(tmproot, label1) |
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376 file2 = repo.vfs.reljoin(tmproot, label2) |
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377 cmdline = formatcmdline( |
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378 cmdline, |
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379 repo.root, |
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380 # no 3way while comparing patches |
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381 do3way=False, |
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382 parent1=file1, |
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383 plabel1=label1, |
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384 # while comparing patches, there is no second parent |
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385 parent2=None, |
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386 plabel2=None, |
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387 child=file2, |
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388 clabel=label2, |
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389 ) |
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390 ui.debug(b'running %r in %s\n' % (pycompat.bytestr(cmdline), tmproot)) |
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391 ui.system(cmdline, cwd=tmproot, blockedtag=b'extdiff') |
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392 return 1 |
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393 |
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394 |
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395 def diffrevs( |
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396 ui, |
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397 repo, |
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398 ctx1a, |
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399 ctx1b, |
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400 ctx2, |
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401 matcher, |
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402 tmproot, |
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403 cmdline, |
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404 do3way, |
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405 guitool, |
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406 opts, |
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407 ): |
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408 |
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409 subrepos = opts.get(b'subrepos') |
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410 |
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411 # calculate list of files changed between both revs |
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412 st = ctx1a.status(ctx2, matcher, listsubrepos=subrepos) |
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413 mod_a, add_a, rem_a = set(st.modified), set(st.added), set(st.removed) |
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414 if do3way: |
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415 stb = ctx1b.status(ctx2, matcher, listsubrepos=subrepos) |
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416 mod_b, add_b, rem_b = ( |
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417 set(stb.modified), |
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418 set(stb.added), |
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419 set(stb.removed), |
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420 ) |
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421 else: |
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422 mod_b, add_b, rem_b = set(), set(), set() |
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423 modadd = mod_a | add_a | mod_b | add_b |
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424 common = modadd | rem_a | rem_b |
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425 if not common: |
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426 return 0 |
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427 |
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428 # Always make a copy of ctx1a (and ctx1b, if applicable) |
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429 # dir1a should contain files which are: |
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430 # * modified or removed from ctx1a to ctx2 |
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431 # * modified or added from ctx1b to ctx2 |
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432 # (except file added from ctx1a to ctx2 as they were not present in |
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433 # ctx1a) |
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434 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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435 dir1a = snapshot(ui, repo, dir1a_files, ctx1a.node(), tmproot, subrepos)[0] |
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436 rev1a = b'' if ctx1a.rev() is None else b'@%d' % ctx1a.rev() |
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437 if do3way: |
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438 # file calculation criteria same as dir1a |
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439 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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440 dir1b = snapshot( |
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441 ui, repo, dir1b_files, ctx1b.node(), tmproot, subrepos |
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442 )[0] |
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443 rev1b = b'@%d' % ctx1b.rev() |
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444 else: |
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445 dir1b = None |
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446 rev1b = b'' |
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447 |
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448 fnsandstat = [] |
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449 |
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450 # If ctx2 is not the wc or there is >1 change, copy it |
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451 dir2root = b'' |
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452 rev2 = b'' |
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453 if ctx2.node() is not None: |
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454 dir2 = snapshot(ui, repo, modadd, ctx2.node(), tmproot, subrepos)[0] |
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455 rev2 = b'@%d' % ctx2.rev() |
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456 elif len(common) > 1: |
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457 # we only actually need to get the files to copy back to |
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458 # the working dir in this case (because the other cases |
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459 # are: diffing 2 revisions or single file -- in which case |
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460 # the file is already directly passed to the diff tool). |
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461 dir2, fnsandstat = snapshot(ui, repo, modadd, None, tmproot, subrepos) |
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462 else: |
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463 # This lets the diff tool open the changed file directly |
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464 dir2 = b'' |
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465 dir2root = repo.root |
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466 |
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467 label1a = rev1a |
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468 label1b = rev1b |
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469 label2 = rev2 |
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470 |
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471 if not opts.get(b'per_file'): |
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472 # If only one change, diff the files instead of the directories |
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473 # Handle bogus modifies correctly by checking if the files exist |
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474 if len(common) == 1: |
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475 common_file = util.localpath(common.pop()) |
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476 dir1a = os.path.join(tmproot, dir1a, common_file) |
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477 label1a = common_file + rev1a |
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478 if not os.path.isfile(dir1a): |
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479 dir1a = pycompat.osdevnull |
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480 if do3way: |
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481 dir1b = os.path.join(tmproot, dir1b, common_file) |
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482 label1b = common_file + rev1b |
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483 if not os.path.isfile(dir1b): |
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484 dir1b = pycompat.osdevnull |
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485 dir2 = os.path.join(dir2root, dir2, common_file) |
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486 label2 = common_file + rev2 |
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487 |
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488 # Run the external tool on the 2 temp directories or the patches |
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489 cmdline = formatcmdline( |
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490 cmdline, |
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491 repo.root, |
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492 do3way=do3way, |
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493 parent1=dir1a, |
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494 plabel1=label1a, |
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495 parent2=dir1b, |
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496 plabel2=label1b, |
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497 child=dir2, |
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498 clabel=label2, |
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499 ) |
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500 ui.debug(b'running %r in %s\n' % (pycompat.bytestr(cmdline), tmproot)) |
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501 ui.system(cmdline, cwd=tmproot, blockedtag=b'extdiff') |
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502 else: |
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503 # Run the external tool once for each pair of files |
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504 _runperfilediff( |
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505 cmdline, |
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506 repo.root, |
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507 ui, |
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508 guitool=guitool, |
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509 do3way=do3way, |
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510 confirm=opts.get(b'confirm'), |
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511 commonfiles=common, |
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512 tmproot=tmproot, |
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513 dir1a=os.path.join(tmproot, dir1a), |
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514 dir1b=os.path.join(tmproot, dir1b) if do3way else None, |
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515 dir2=os.path.join(dir2root, dir2), |
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516 rev1a=rev1a, |
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517 rev1b=rev1b, |
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518 rev2=rev2, |
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519 ) |
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520 |
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521 for copy_fn, working_fn, st in fnsandstat: |
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522 cpstat = os.lstat(copy_fn) |
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523 # Some tools copy the file and attributes, so mtime may not detect |
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524 # all changes. A size check will detect more cases, but not all. |
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525 # The only certain way to detect every case is to diff all files, |
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526 # which could be expensive. |
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527 # copyfile() carries over the permission, so the mode check could |
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528 # be in an 'elif' branch, but for the case where the file has |
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529 # changed without affecting mtime or size. |
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530 if ( |
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531 cpstat[stat.ST_MTIME] != st[stat.ST_MTIME] |
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532 or cpstat.st_size != st.st_size |
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533 or (cpstat.st_mode & 0o100) != (st.st_mode & 0o100) |
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534 ): |
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535 ui.debug( |
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536 b'file changed while diffing. ' |
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537 b'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn) |
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538 ) |
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539 util.copyfile(copy_fn, working_fn) |
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540 |
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541 return 1 |
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542 |
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543 |
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544 def dodiff(ui, repo, cmdline, pats, opts, guitool=False): |
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545 """Do the actual diff: |
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546 |
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547 - copy to a temp structure if diffing 2 internal revisions |
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548 - copy to a temp structure if diffing working revision with |
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549 another one and more than 1 file is changed |
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550 - just invoke the diff for a single file in the working dir |
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551 """ |
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552 |
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553 cmdutil.check_at_most_one_arg(opts, b'rev', b'change') |
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554 revs = opts.get(b'rev') |
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555 from_rev = opts.get(b'from') |
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556 to_rev = opts.get(b'to') |
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557 change = opts.get(b'change') |
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558 do3way = b'$parent2' in cmdline |
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559 |
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560 if change: |
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561 ctx2 = logcmdutil.revsingle(repo, change, None) |
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562 ctx1a, ctx1b = ctx2.p1(), ctx2.p2() |
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563 elif from_rev or to_rev: |
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564 repo = scmutil.unhidehashlikerevs( |
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565 repo, [from_rev] + [to_rev], b'nowarn' |
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566 ) |
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567 ctx1a = logcmdutil.revsingle(repo, from_rev, None) |
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568 ctx1b = repo[nullrev] |
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569 ctx2 = logcmdutil.revsingle(repo, to_rev, None) |
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570 else: |
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571 ctx1a, ctx2 = logcmdutil.revpair(repo, revs) |
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572 if not revs: |
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573 ctx1b = repo[None].p2() |
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574 else: |
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575 ctx1b = repo[nullrev] |
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576 |
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577 # Disable 3-way merge if there is only one parent |
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578 if do3way: |
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579 if ctx1b.rev() == nullrev: |
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580 do3way = False |
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581 |
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582 matcher = scmutil.match(ctx2, pats, opts) |
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583 |
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584 if opts.get(b'patch'): |
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585 if opts.get(b'subrepos'): |
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586 raise error.Abort(_(b'--patch cannot be used with --subrepos')) |
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587 if opts.get(b'per_file'): |
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588 raise error.Abort(_(b'--patch cannot be used with --per-file')) |
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589 if ctx2.node() is None: |
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590 raise error.Abort(_(b'--patch requires two revisions')) |
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591 |
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592 tmproot = pycompat.mkdtemp(prefix=b'extdiff.') |
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593 try: |
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594 if opts.get(b'patch'): |
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595 return diffpatch( |
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596 ui, repo, ctx1a.node(), ctx2.node(), tmproot, matcher, cmdline |
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597 ) |
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598 |
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599 return diffrevs( |
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600 ui, |
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601 repo, |
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602 ctx1a, |
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603 ctx1b, |
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604 ctx2, |
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605 matcher, |
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606 tmproot, |
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607 cmdline, |
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608 do3way, |
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609 guitool, |
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610 opts, |
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611 ) |
5143
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Remove trailing spaces, fix indentation
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612 |
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613 finally: |
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614 ui.note(_(b'cleaning up temp directory\n')) |
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615 shutil.rmtree(tmproot) |
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616 |
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617 |
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618 extdiffopts = ( |
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619 [ |
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620 ( |
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621 b'o', |
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622 b'option', |
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623 [], |
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624 _(b'pass option to comparison program'), |
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625 _(b'OPT'), |
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626 ), |
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627 (b'r', b'rev', [], _(b'revision (DEPRECATED)'), _(b'REV')), |
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628 (b'', b'from', b'', _(b'revision to diff from'), _(b'REV1')), |
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629 (b'', b'to', b'', _(b'revision to diff to'), _(b'REV2')), |
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630 (b'c', b'change', b'', _(b'change made by revision'), _(b'REV')), |
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631 ( |
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632 b'', |
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633 b'per-file', |
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634 False, |
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635 _(b'compare each file instead of revision snapshots'), |
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636 ), |
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637 ( |
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638 b'', |
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639 b'confirm', |
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640 False, |
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641 _(b'prompt user before each external program invocation'), |
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642 ), |
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643 (b'', b'patch', None, _(b'compare patches for two revisions')), |
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644 ] |
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645 + cmdutil.walkopts |
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646 + cmdutil.subrepoopts |
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647 ) |
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648 |
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649 |
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650 @command( |
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651 b'extdiff', |
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652 [ |
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653 (b'p', b'program', b'', _(b'comparison program to run'), _(b'CMD')), |
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654 ] |
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655 + extdiffopts, |
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656 _(b'hg extdiff [OPT]... [FILE]...'), |
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657 helpcategory=command.CATEGORY_FILE_CONTENTS, |
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658 inferrepo=True, |
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659 ) |
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660 def extdiff(ui, repo, *pats, **opts): |
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661 """use external program to diff repository (or selected files) |
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662 |
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663 Show differences between revisions for the specified files, using |
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Change double spaces to single spaces in help texts.
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664 an external program. The default program used is diff, with |
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665 default options "-Npru". |
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666 |
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|
667 To select a different program, use the -p/--program option. The |
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668 program will be passed the names of two directories to compare, |
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669 unless the --per-file option is specified (see below). To pass |
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670 additional options to the program, use -o/--option. These will be |
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671 passed before the names of the directories or files to compare. |
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672 |
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673 The --from, --to, and --change options work the same way they do for |
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674 :hg:`diff`. |
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675 |
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676 The --per-file option runs the external program repeatedly on each |
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677 file to diff, instead of once on two directories. By default, |
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678 this happens one by one, where the next file diff is open in the |
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679 external program only once the previous external program (for the |
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680 previous file diff) has exited. If the external program has a |
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681 graphical interface, it can open all the file diffs at once instead |
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682 of one by one. See :hg:`help -e extdiff` for information about how |
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683 to tell Mercurial that a given program has a graphical interface. |
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684 |
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685 The --confirm option will prompt the user before each invocation of |
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686 the external program. It is ignored if --per-file isn't specified. |
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687 """ |
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688 opts = pycompat.byteskwargs(opts) |
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689 program = opts.get(b'program') |
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690 option = opts.get(b'option') |
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691 if not program: |
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692 program = b'diff' |
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693 option = option or [b'-Npru'] |
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694 cmdline = b' '.join(map(procutil.shellquote, [program] + option)) |
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695 return dodiff(ui, repo, cmdline, pats, opts) |
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696 |
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697 |
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698 class savedcmd: |
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699 """use external program to diff repository (or selected files) |
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700 |
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701 Show differences between revisions for the specified files, using |
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702 the following program:: |
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703 |
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704 %(path)s |
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705 |
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706 When two revision arguments are given, then changes are shown |
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707 between those revisions. If only one revision is specified then |
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708 that revision is compared to the working directory, and, when no |
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709 revisions are specified, the working directory files are compared |
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|
710 to its parent. |
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711 """ |
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712 |
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713 def __init__(self, path, cmdline, isgui): |
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714 # We can't pass non-ASCII through docstrings (and path is |
40806
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|
715 # in an unknown encoding anyway), but avoid double separators on |
151aec6494a8
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|
716 # Windows |
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|
717 docpath = stringutil.escapestr(path).replace(b'\\\\', b'\\') |
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718 self.__doc__ %= {'path': pycompat.sysstr(stringutil.uirepr(docpath))} |
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719 self._cmdline = cmdline |
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720 self._isgui = isgui |
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|
721 |
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|
722 def __call__(self, ui, repo, *pats, **opts): |
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723 opts = pycompat.byteskwargs(opts) |
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724 options = b' '.join(map(procutil.shellquote, opts[b'option'])) |
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725 if options: |
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726 options = b' ' + options |
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|
727 return dodiff( |
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|
728 ui, repo, self._cmdline + options, pats, opts, guitool=self._isgui |
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|
729 ) |
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|
730 |
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|
731 |
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|
732 def _gettooldetails(ui, cmd, path): |
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|
733 """ |
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|
734 returns following things for a |
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|
735 ``` |
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|
736 [extdiff] |
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|
737 <cmd> = <path> |
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|
738 ``` |
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|
739 entry: |
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|
740 |
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changeset
|
741 cmd: command/tool name |
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|
742 path: path to the tool |
2d08dcf8fd9e
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|
743 cmdline: the command which should be run |
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|
744 isgui: whether the tool uses GUI or not |
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|
745 |
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changeset
|
746 Reads all external tools related configs, whether it be extdiff section, |
2d08dcf8fd9e
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diff
changeset
|
747 diff-tools or merge-tools section, or its specified in an old format or |
2d08dcf8fd9e
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Pulkit Goyal <7895pulkit@gmail.com>
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changeset
|
748 the latest format. |
2d08dcf8fd9e
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changeset
|
749 """ |
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diff
changeset
|
750 path = util.expandpath(path) |
2d08dcf8fd9e
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changeset
|
751 if cmd.startswith(b'cmd.'): |
2d08dcf8fd9e
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changeset
|
752 cmd = cmd[4:] |
2d08dcf8fd9e
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diff
changeset
|
753 if not path: |
2d08dcf8fd9e
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changeset
|
754 path = procutil.findexe(cmd) |
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|
755 if path is None: |
2d08dcf8fd9e
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changeset
|
756 path = filemerge.findexternaltool(ui, cmd) or cmd |
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|
757 diffopts = ui.config(b'extdiff', b'opts.' + cmd) |
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|
758 cmdline = procutil.shellquote(path) |
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|
759 if diffopts: |
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|
760 cmdline += b' ' + diffopts |
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|
761 isgui = ui.configbool(b'extdiff', b'gui.' + cmd) |
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|
762 else: |
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|
763 if path: |
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changeset
|
764 # case "cmd = path opts" |
2d08dcf8fd9e
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changeset
|
765 cmdline = path |
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|
766 diffopts = len(pycompat.shlexsplit(cmdline)) > 1 |
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|
767 else: |
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|
768 # case "cmd =" |
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|
769 path = procutil.findexe(cmd) |
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|
770 if path is None: |
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|
771 path = filemerge.findexternaltool(ui, cmd) or cmd |
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|
772 cmdline = procutil.shellquote(path) |
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|
773 diffopts = False |
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|
774 isgui = ui.configbool(b'extdiff', b'gui.' + cmd) |
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|
775 # look for diff arguments in [diff-tools] then [merge-tools] |
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|
776 if not diffopts: |
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|
777 key = cmd + b'.diffargs' |
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changeset
|
778 for section in (b'diff-tools', b'merge-tools'): |
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|
779 args = ui.config(section, key) |
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changeset
|
780 if args: |
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|
781 cmdline += b' ' + args |
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|
782 if isgui is None: |
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|
783 isgui = ui.configbool(section, cmd + b'.gui') or False |
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changeset
|
784 break |
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|
785 return cmd, path, cmdline, isgui |
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|
786 |
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787 |
2333
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788 def uisetup(ui): |
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789 for cmd, path in ui.configitems(b'extdiff'): |
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790 if cmd.startswith(b'opts.') or cmd.startswith(b'gui.'): |
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791 continue |
45410
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792 cmd, path, cmdline, isgui = _gettooldetails(ui, cmd, path) |
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793 command( |
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794 cmd, |
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795 extdiffopts[:], |
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796 _(b'hg %s [OPTION]... [FILE]...') % cmd, |
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797 helpcategory=command.CATEGORY_FILE_CONTENTS, |
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798 inferrepo=True, |
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799 )(savedcmd(path, cmdline, isgui)) |
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800 |
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801 |
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802 # tell hggettext to extract docstrings from these functions: |
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803 i18nfunctions = [savedcmd] |